Ryzentosh was booting; changed GPU caused resets; changed GPU to what was working still resets

Ryzentosh was booting; changed GPU caused resets; changed GPU to what was working still resets

I was so happy to finally get my AMD system booting Ventura I nearly cried.

I installed the system with an NVIDIA 2060 card present. I switched to an AMD Sapphire Pulse RX 580 to hopefully get accelerated graphics working, but the system reset right before it would normally show the Apple logo. I put back the NVIDIA card, but now it just resets no matter what. It resets even if I try to run the installer now too.

Using OpenCore 0.99. I tried to enable ResetNvramEntry.efi but I get the error it's not supported and panics. I tried booting in Safe Mode, no dice. I tried booting off the USB with an EFI folder I had backed up when I got the installer to run.

I installed with agdpmod=pikera boot-args since I was planning on using AMD GPU. I have "Above 4G enabled" in bios so I'm not using npci=0x2000.

CPU: AMD Ryzen 7 3700X, MOBO: ASUS X570-PRO.

The attached image is the best I can get of the screen right before it resets. I had to use slow-motion capture because it's displayed so briefly before resetting.

https://preview.redd.it/0xj1skgwr7qc1.png?width=1920&format=png&auto=webp&s=600d24a48ea734264341426b4270bc9ac87d3160

submitted by /u/3D_TOPO
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